Breastfeeding can make your period a little mysterious. "Some women get it after about six to eight weeks, and some women don't see their menses until a couple of months after they're done breastfeeding, which could be up to six months," OB/GYN Dr. Natasha Chinn, MD, FACOG of Brescia and Migliaccio, tells POPSUGAR. When you breastfeed, prolactin increases and can inhibit your flow. The levels do vary, though, based on the woman, but "usually the flow is lighter and may not come as frequently. The [higher] levels decrease flow," she explains.